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20 resultsShowing papers similar to Microplastics and biochar interactively affect nitrous oxide emissions from tobacco planting soil
ClearBiochar-microplastics interaction modulates soil nitrous oxide emissions and microbial communities
Researchers examined how biochar interacts with conventional and biodegradable microplastics in soil to affect coriander growth, nitrous oxide emissions, and microbial communities. They found that biochar generally reduced soil nitrous oxide emissions, but this benefit was diminished or even reversed when certain microplastics were present. The study suggests that the combined use of biochar and plastic mulch in agricultural fields can produce unexpected effects on greenhouse gas emissions and soil microbiology.
Interactive effects of microplastics, biochar, and earthworms on CO2 and N2O emissions and microbial functional genes in vegetable-growing soil
Researchers found that the interactions between microplastics, biochar, and earthworms had complex effects on soil greenhouse gas emissions, with biochar reducing CO2 emissions but the combination with microplastics and earthworms promoting nitrous oxide emissions in vegetable-growing soil.
Biochar and Microplastics Affect Microbial Necromass Accumulation and CO2 and N2O Emissions from Soil
Researchers investigated how biochar and polyethylene microplastics interact in soil and found that both reduced CO2 and N2O greenhouse gas emissions, though through different mechanisms. Microplastics decreased emissions primarily by reducing dissolved organic matter and bacterial biomass, while biochar suppressed nitrogen-cycling genes. When combined, microplastics in biochar-treated soil unexpectedly increased microbial necromass carbon by disrupting soil aggregates, revealing complex interactions between these two soil amendments.
Polyethylene microplastic and biochar interactively affect the global warming potential of soil greenhouse gas emissions
A 45-day laboratory incubation experiment tested polyethylene microplastics and two types of biochar applied to agricultural soil alone and in combination, measuring effects on greenhouse gas emissions and microbial communities. Co-application of microplastic and biochar reduced the global warming potential of cumulative greenhouse gas emissions compared to microplastic alone, suggesting biochar partially mitigates microplastic effects on soil carbon cycling.
Every coin has two sides: Continuous and substantial reduction of ammonia volatilization under the coexistence of microplastics and biochar in an annual observation of rice-wheat rotation system
Researchers investigated the effects of polyethylene, polyester, and polyacrylonitrile microplastics combined with straw-derived biochar on ammonia volatilization in rice-wheat rotation soils over one year, finding that biochar alone reduced cumulative ammonia volatilization by 5.5% and microplastics combined with biochar reduced it by 11.2-26.6% in the rice season, with mechanisms involving increased nitrate concentration and soil cation exchange capacity.
Influence of polyethylene terephthalate microplastic and biochar co-existence on paddy soil bacterial community structure and greenhouse gas emission
Researchers studied how polyethylene terephthalate microplastics and biochar, both common in agricultural soils, affect soil bacteria and greenhouse gas emissions during rice cultivation. They found that microplastics alone reduced bacterial diversity, but adding biochar alongside the microplastics partially restored microbial communities and altered gas emissions. The study suggests that biochar may help mitigate some of the negative soil health effects of microplastic contamination in paddy fields.
Effects of microplastics on N2O production and reduction potential in crop soils of northern China
This study examined how polyethylene and polypropylene microplastics at concentrations of 0.5 to 3% affect nitrous oxide production and reduction potential in crop soils from northern China. Results showed that microplastic contamination altered N2O fluxes in vegetable soils by disrupting denitrification pathways, with implications for agricultural greenhouse gas emissions.
Response of Soil Greenhouse Gases Emissionsto Microplastics Accompanied with Earthwormsand Biochar from a Sandy-Loam Soil
Researchers used a controlled soil experiment to test how PVC microplastics, biochar, and earthworms individually and together affect greenhouse gas emissions from agricultural soil, finding that microplastics increased CO2 release while suppressing methane and nitrous oxide. The complex interactions between these factors underscore that microplastic contamination in farmland can have unintended effects on soil carbon and climate.
Rice yield and carbon dioxide emissions in a paddy soil: A comparison of biochar and polystyrene microplastics
Researchers compared the effects of biochar and polystyrene microplastics on rice growth and carbon dioxide emissions in paddy soil. Both materials increased CO2 emissions, but biochar improved rice yield while microplastics did not provide the same benefits. The study suggests that microplastic accumulation in rice paddies could worsen greenhouse gas emissions without the soil-improvement benefits that biochar offers.
Polyethylene microplastics hamper aged biochar’s potential in mitigating greenhouse gas emissions
Polyethylene microplastics (1–5% by weight) significantly reduced the greenhouse gas-mitigating benefits of aged biochar in agricultural soil, decreasing soil aggregation and altering dissolved organic matter dynamics—raising concerns about microplastic interference with biochar-based carbon sequestration strategies.
Low-density polyethylene microplastics and biochar interactively affect greenhouse gas emissions and microbial community structure and function in paddy soil
Researchers examined how low-density polyethylene microplastics and biochar interact when added to paddy soil, affecting greenhouse gas emissions and microbial communities. The study found that both amendments significantly increased methane emissions while suppressing carbon dioxide output, and their combined presence altered soil microbial community structure and functional gene abundances in ways that influence biogeochemical processes.
Influence of biochar and microplastics on microbial necromass accumulation and CO2 and N2O emission in a Calcaric Fluvisol
A 91-day soil experiment found that biochar reduced CO2 and N2O emissions, but the presence of microplastics partially counteracted these benefits, suggesting that plastic pollution can undermine soil carbon management strategies.
Effects of microplastics on soil organic carbon and greenhouse gas emissions in the context of straw incorporation: A comparison with different types of soil
Researchers combined microplastic treatments with straw incorporation in different soil types and measured effects on soil organic carbon and greenhouse gas emissions, finding that microplastics altered carbon cycling and in some soils increased CO2 and N2O emissions.
[Effects of Microplastics on Soil N2O Emission and Nitrogen Transformations from Tropical Agricultural Soils].
Researchers conducted a controlled laboratory incubation experiment to examine the effects of polyethylene and polybutylene adipate co-terephthalate microplastics on N2O emissions and nitrogen transformations in tropical agricultural soils from a pepper-corn cropping system in Hainan Province, China.
Effects of biodegradable microplastics and straw addition on soil greenhouse gas emissions
Researchers tested how biodegradable microplastics made from polylactic acid (PLA) affect greenhouse gas emissions from soil, both with and without added crop straw. They found that high concentrations of PLA microplastics significantly increased carbon dioxide emissions while decreasing nitrous oxide emissions, suggesting that even biodegradable alternatives to conventional plastic mulch films can meaningfully alter soil chemistry and gas cycles.
Presence of microplastics alone and co-existence with hydrochar unexpectedly mitigate ammonia volatilization from rice paddy soil and affect structure of soil microbiome
Microplastics added to rice paddy soil unexpectedly reduced ammonia volatilization compared to unamended controls, with combined addition of microplastics and hydrochar further altering ammonia loss patterns, and microplastics changing soil bacterial community structure in ways that may affect nitrogen cycling in irrigated agricultural ecosystems.
Antagonistic Effect of Microplastic Polyvinyl Chloride and Nitrification Inhibitor on Soil Nitrous Oxide Emission: An Overlooked Risk of Microplastic to the Agrochemical Effectiveness
Agricultural soil experiments found that polyvinyl chloride (PVC) microplastics and the nitrification inhibitor DMPP interact antagonistically, meaning their combined presence partially cancels out each other's individual effects on reducing nitrous oxide emissions from soil. This unexpected interaction suggests that widespread microplastic contamination in farm soils could quietly undermine the effectiveness of agrochemicals designed to cut greenhouse gas emissions.
Microplastics in agricultural soil: Unveiling their role in shaping soil properties and driving greenhouse gas emissions
This review examines how microplastics in agricultural soils affect carbon and nitrogen cycles and alter greenhouse gas emissions. Researchers found that microplastics reduce soil water retention, decrease soil respiration, and increase emissions of carbon monoxide, methane, and nitrous oxide. The study reveals that microplastic contamination in farmland may have broader climate implications by disrupting the soil processes that regulate greenhouse gas fluxes.
Disentangling microplastics effects on soil structure, microbial activity and greenhouse gas emissions
Researchers studied how microplastics affect soil structure, microbial activity, and greenhouse gas emissions, finding complex interactions that depend on microplastic type and concentration. The presence of microplastics in soils can alter the biological processes that regulate carbon storage and nutrient cycling.
Effect of microplastics on soil greenhouse gas emissions: A global meta-analysis study
This global meta-analysis found that microplastic exposure in soil decreased nitrous oxide emissions by 28.5% and increased methane emissions by 28.6%, though neither change was statistically significant overall. Effects varied dramatically depending on microplastic shape, concentration, soil type, and pH, with fiber-shaped microplastics reducing CO2 emissions by 40% while microplastics in sandy soils increased CO2 by 21%.